Gas-burner mechanism.



J. B. ANDERSON.

GAS BURNER MECHANISM.

APPLICATION FILED MAR. 10, 1914.

H WQMWILQ Patented June 9,1914%.

3 SHEETEr-SHEET l.

INVENTOR W'NESSES J. B. ANDERSON.

GAS BURNER MECHANISM.

A APPLICATION FILED MAR. 10, 1914. 1 a Patented June 9,1914!- 3 SHEETS-SHEET 2.

we mvm'rom u 1 1 A" v .m 1111 /3 Q, ML 9 J J. B. ANDERSON.

GAS BURNER MECHANISM.

APPLICATION FILED MAR. 10, 1914.

l lfll Patentaul June 9,1914

3 SHEETS-SHEET 3.

ED STATES PATENT OFFICE.

JAMES B. ANDERSON, 0F SEALER TOWNSHIP, ALLEGHENY COUNTY, PENNSYLVANIA. V

GAS-BURNER MECHANISM.

Application filed March 10, 1914. Serial No. 823,665.

To all whom it may concern:

Be it known that 1, James B. ANDERSON, citizen of the United States, and residing in the township of Shaler, in the county of Allegheny and State of Pennsylvania, have invented or discovered new and useful improvements in Gas-Burner Mechanism, of which the following is a specification.

My invention consists of a new and improved burner mechanism for use with gaseous fuel of any character. While applicable to the combustion of such fuel for any purpose, it is especially intended for use in stoves, ranges, hot-plates, hot-air furnaces, &c.

Generally speaking it consists of two or more adjacent and preferably concentric perforated burners or rings communicating with a common gas chamber, the admission of gas to which is controlled by a needle-valve. One of said burners, preferably the'central one, is in constant communication with said gaschamber, while the remaining burner or burners are in communication with said chamber only when the needle valve is open to a predetermined degree. Where three or more burners are provided,

the outer burners are brought in turn into communication with the gas chamber as the needle valve 1s opened, and sald communicatlon 1s shut 0E in reverse order as the needle valve is closed. The rate of admission of gas to any of the outer burners is regulated in unison with the needle valve.

In the accompanying drawings, Figure 1 is a top plan view of an embodiment of my invention'in the form of a convenient gas burner mechanism; Figs. .2 and 3 together form an enlarged longitudinal section, partially broken away, taken along the line 11 -111 in Fig. 1; Fig. 4 is a vertical section taken along the. line IV-IV in Fig. 2; Fig. 5 is a vertical section taken along the line VV in Fig. 3, and Fig. 6 is a similar view taken along .the line VI-VI in Fig. 3.

The following is a detailed description of the drawings.

A represents the fuel supply pipe in which my burner mechanism is mounted. The inlet chamber of my burner mechanism is composed of the cylinder B one of whose ends is internally threaded to be screwed onto the boss 1 of the cylinder C which forms the mixer. Said end of the said mixer is provided with an inwardly extending needle valve seat 2. The other end of the mixer just the capacity of the needle valve.

8 is a hand-wheel mounted on the outer end of stem 4 for convenience in rotating the same for valve adjustment.

9 represents a series of longitudinally slotted air ports in the wall of mixer C arran ed annularly about the seat 2 and 10 is a flaring hood shielding said ports. and mounted on the mixer.

11 is a shutter in the form of a collar slidingly mounted on the mixer C and adapted to close or adjust the capacity of the air ports 9.

12 represents a pair of connecting rods having their inner ends threaded in holes in the end of shutter 11 and their outer ends adjustably secured to a cross head 13 loosely mounted on the stem 4.

Specification of Letters Patent. Patented J 119 9, 1914,

14 is a circumferential flange on said stem 1 4 bearing against'one' face of said cross head while 15 is a collar mounted on said stem 4 and secured in placeagainst the other face of said' cross head by means of a set screw. Thus said cross head and said shutter move longitudinally with said stem but do not rotate therewith. It is thus evident that the admission of air into the mixer C is controlled in unison with the admission of gas thereto, thus enabling the mixture to be maintained at 'a' constant ratio 'whatever the quantity of gas is admitted through the needlevalve. .By adjusting the. rods 12 in relation with cross head 13, the ratio between gas' and air in the mixture ma be varied as desired.

The inner end of the gas chamber body D is closed. E, F and G represent three concentric burners or rings mounted on said body. One of said rings, preferably the central one, E, is mounted on'said body D by means of its lateral flanges 16 which are bolted to the flange 17 of the chamber I). An open port 18 admits fuel from said chambar to the interior of said ring. 19 is a boss integral with the body D upon which the rings F and G are mounted by means of their flanges 20.

21 and 21 represent, respectively, ports which supply fuel from the chamber D to the interiors of the rings F and G. Said ports are1in parallel alinement in the boss 19 with the needle rod 4. p

22 is a bore extending through the boss 19 and intersecting at right angles the ports 21 and 21.

23 is a connecting rod extending into one end of. the bore 22 while the other end of said bore is closed as by a screw plug 24:.

25 and'25 are a pair of cylindrical valve plugs, which maybe advantageously made of fiber or metal. Said plugs are mounted on the rod 23 and move therewith longitudinally in the bore 22. The plug 25 is adapted to intercept the port 21 and either close the same or regulate the quantity of fuel admitted there through into the ring F while the plug 25 is adapted to perform the same ofiices in relation to the port 21*. The said plugs are so proportioned and arranged that when the rod 23 moves outwardly, the port,

21 is first gradually uncovered and when said rod moves inwardly the port 21 is first reduced in capacity and closed.

26 is a bracket or lug integral with or carried by the shutter 11 and extending through a slot 27 in the hood 10. The outer end of connecting rod 23 is adjustably secured to said bracket 26.

28 are the usual perforations in the rings E, F and G.

It is thus evident that in unison with the adjustment of the needle valve, the quantity of air admitted to the mixer may be regulated and that also the number of burner rings in use and the quantity of fuel supplied thereto may also be controlled.

The operation of my invention is as follows: When the needle valve is entirely closed, as shown in Figs. 2 and 3, the shutter 11 entirely closes the air ports 9 and the plugs 25 and 25 seal the ports 21 and 21 so that no gas passes from chamber D to the rings F and G. As the needle valve is gradually opened, the shutter 11 begins toexpose the ports 9 thus permitting the desired quantity of air to enter to be mixed with the gas. This fuel passes on into the chamber D and thence through the port 18 to the central ring E where it passes through the perforations 28 and is ignited. As the needle valve is further opened, and the quantity of fuel admitted to the mixer and the gas chamber increases, the port 21 is gradually unsealed admitting the gas into the next ring F. The quantity of gas thus admitted through the port 21 is increased as the needle valve is further opened and in turn the port 21 isunsealed and the quantity of gas there through admitted is gladually increased to the full capacity of said port. Thus the three rings are supplied with their full capacity and the maximum of combustion obtained. It is evident that the gradual closing of the needle valve will cause a reversal of the above result, the outer ring, G, first having its fuel supply reduced and then shut 0E, followed by a similar action in the case of the next inner ring F, until the central ring E alone is receiving gas. The gas is shut ofi from the central ring only when the needle valve is entirely closedf It is evident that after the central ring has been lighted, the outer rings will ignite therefrom as fuel is supplied thereto.

For convenience of illustration 1 have shown three burners or rings but it will be understood that two or any number of burners may be used as the quantity of combustion required may dictate. I have shown the ignition members in the form of annular perforated bodies, this being the form in which the ring or burner in this general type of burner is usually provided but it will be understood that for the purposes of my invention the burners need not be annular in shape nor need they be arranged in concentric relationship but that they may be of any convenient design and contour and may be associated together in any character of j uxtaposition,

What I desire to claim is 1. A gas burner mechanism comprising a V fuel chamber; coordinated means for admitting gas and air into said chamber; a burner receivlng fuel from said chamber through a passage, a plunger valve intercepting said passage and controlling the same, and operative connection between said plunger valve and said coordinated means whereby the same operate in unison.

2. A gas burner mechanism comprising a fuel chamber; coordinated means for admitting gas and air into said chamber; a burner receiving fuel from said chamber through a passage; a plunger valve intercepting said passage and controlling the same, and adjustable operative connection between said plunger valve and said coordinated means whereby the same may be operated in unison as adjusted.

3. A gas burner mechanism comprising a fuel chamber; coordinated means for admitting gas and air into said chamber; a burner receiving fuel from said chamber through a passage; a plunger valve intercepting said passage and controlling the same; operative connection between said plunger valve and said coordinated means whereby the same may be operated in unison, and a second burner in constant communication with said chamber.

1. A gas burner mechanism comprising a fuel chamber; coordinated means for admitting gas and air into said chamber; a plurality of burners connected with said chamber by means of individual gas passages; a plunger valve intercepting said gas passages and controlling the same, said plunger valve being arranged to establish and increase the supply of gas through said passages in a given order when said valve moves in one direction and to decrease and plurality of burners connected with said chamber by means of individual gas passages; a plunger valve intercepting said gas passages and controlling the same, said plunger valve being arranged to establish and increase the supply of gas through said passages in a given order when said valve moves in one direction and to decrease and cut off the supply of gas through said passages in reverse order when the valve moves in the opposite direction; adjustable operative connection between said plunger valve and said coordinated means whereby the same may be operated together, and an additional burner in constant communication with said chamber.

6. A gas burner mechanism comprising a fuel chamber; a mixing chamber communicating with said fuel chamber; a needle valve controlling the admission of gas to said mixing chamber; a longitudinally sliding shutter controlling the admission of air to said mixing chamber; a burner communicating with said fuel chamber by means of a gas passage; a plunger valve interceptin said passage and controlling the same; a justable means whereby said needle valve and said shutter are operated in unison, and adjustable connection between said plunger valve and said means whereby said plunger valve is operated thereby.

7 A gas burner mechanism comprising a fuel chamber; a mixing chamber communicating with said fuel chamber; a needle valve controlling the admission of gas to said mixing chamber; a burner communicating with said fuel chamber by means of a gas passage; a plunger valve intercepting said passage and controlling the same; adjustable means whereby said needle valve and said shutter are operated in unison; adjustable connections between said plunger valve andsaid means whereby said plunger valve is operated thereby, and a second burner in constant communication with said fuel chamber.

Signed at Pittsburgh, Penna, this 28th day of February, 1914.

JAMES B. ANDERSON.

Witnesses:

EDWARD A. LAWRENCE, SYLVESTER J. SNEE. 

